sanctimonious Meaning, Definition & Usage

  1. adjective satellite excessively or hypocritically pious
    pharisaic; self-righteous; holier-than-thou; pietistic; pharisaical; pietistical.
    • a sickening sanctimonious smile

WordNet

Sanc`ti*mo"ni*ous adjective
Etymology
See Sanctimony.
Definitions
  1. Possessing sanctimony; holy; sacred; saintly. Shak.
  2. Making a show of sanctity; affecting saintliness; hypocritically devout or pious. "Like the sanctimonious pirate." Shak. -- Sanc`ti*mo"ni*ous*ly, adv. -- Sanc`ti*mo"ni*ous*ness, n.

Webster 1913